Device for balancing pump-rods.



G. W. IVICCONNELL.v

DEVICE FOR BALANCING PUMP RODS.

. APPLlCATlON FILED MAYl4-l911. L%5%9UJL Patented Feb; 26, 1918.

l lh l Ill rn srarns rennin ent re =1 GEORGE W. IVIIGCONNELL, OFOKLAHOMA, OKLAHOMA,ASSIG1\TOB OF ONE-HALF TO VT. B. MGILWAIN, OFOKLAHOMA, QKLAHOMA.

nnvron ron natanoine rol er-none.

LEWLIWI.

Specification of Letters Patent.

Patented nee. as, rare.

Application filed May 14%, 1917. Serial No. 168,580.

' ing at Oklahoma city, in the county of OklalllOlllit and State ofOklahoma, have invented certain new and useful. Improvements in Devicesfor Balancing Pump-Bods, 01": which the following is a specification,reference being had to the accompanying drawings.

This invention pertains to devices for" balancing the weight orresistance of pumprods in windmills.

An object of the invention is to produce a device or" this kind whichmay be more easily and conveniently thrown into or out of gear orworking relation with the pumprod.

Other objects and advantages of the in vention will be set forth in theensuing de scription.

The acconiipanying drawings show one embodiment of the invention inactual practice.

Figure 1 is an elevation View showing the device in use on a windmill,thetower of the windmill being shown in section.

Fig. 2 is a'reproduction of the lower portion of Fig. 1, but showing thedevice detached from the pump-rod.

Fig. 3 is a fragmental elevation View of parts shown in Fig. 1, buttaken at right angles to Fig. 1.

Fig. 4 is an elevation view in the direction of the arrow l of Fig. 1,showing parts around and above the pointindicated by said arrow. 7

Referring to the several figures, in all of which like characters ofreference designate like parts, the numeral 5 designates the cornerposts of a windmill tower; 6 the horizontal girt boards connecting saidposts; and 7 the pump-rod of the windmill.

In carrying out the objects stated, a helical spring 8 is arranged toloosely embrace the pump-rod 7, and this spring is supported by rods 9which attach to diametrically-opposite sides of its upper end and arethemselves hooked over the girt boards 6 at their upper and outer endsas at 10.

At the points where these rods 9 attach to the spring 8, the coil of thelatter is struck upward into a loop 11 to keep the rods from slidingaround and pulling from wrong points.

'lwo hangers 12 are attached pivotally to the lower end of the spring 8to engage the pump-rod 7, and in order to connect these springs to thespring in a proper manner a sleeve 13 is screwthreaded up into the lowercoils of the spring and loosely embraces said puinp-rod, the hangersbeing pivoted to this sleeve. I

The lower ends of the hangers 12 are adapted to be detach-ably connectedto the pump-rod 7, and in arranging for this connection long strap-ironplates 1-1 are rigidly clantiped to opposite faces of the pump-rod bybolts 15, the hangers being provided at their lower ends with spurs 16adapted to engage holes 17 in said plates.

The lower ends of the hangers 12 are provided with hand-holds 18 so thatthey may be conveniently grasped to draw them downward.

When the hangers 12 are detached from the pump-rod, the latter is freeto slide vertically through the sleeve 13 and not influenced by thespring 8, the hangers being held upward by the spring as shown in Fig. 2where their spurs 16 will not hook into any of the holes 17 of theplates 14:; but when it is desired to bring the spring intouse inbalancing the weight or resistance of the pump-rod it is stretcheddownward and placed under tension by taking hold of the hand-holds ofthe hangers and pulling the latter downward.

When the spring is under proper tension to balance the pump-rod 7, thehangers 12 are swung inward, bringing their spurs 16 into the nearestpair of holes 17 in the plates 14.

Having thus described the invention, I claim:

1. In a device of the class described, a helical spring adapted toembrace a pump rod, means for suspending the spring, a hanger dependingfrom the lower end of the spring. said hanger being provided with a spuradapted to engage a pump-rod.

2. In a device of the class described, a helical spring adapted toembrace a pump rod, means for suspending the spring, a hanger dependingfrom the lower end of the spring, said hanger having a spur, a plateadapted to be secured to the pump-rod and having holes to be engaged bysaid spur.

3. In a device of the class described, a helical spring adapted toembrace a pumprod, means for suspending the spring, a

sleeve carried bythe lower end of the spring and adapted to slidablyembrace the pump-rod, a hanger depending from said sleeve, and means atthe lower end of the hanger for detachably hitching said hanger to thepump-rod.

4:. In a device of the class described, a helical spring adapted toembrace a pumprod, means for suspending the spring, a sleeve carried bythe lower end of the spring and adapted to embrace the pump-rod, hangersdepending from the sleeve and having spurs, a plateadapted to be securedto the pump-rod and having a series of holes to receive said spur. r

5.1n combination with a pump-rod, a

" Copies ei this patent may be obtained for helical spring embracing thepump-rod, means for suspending the upper end of the spring, a hangerdepending from the lower end of the spring, and means for attaching saidhanger to the pump-rod.

6. In combination with a pump-rod and windmill tower, a helical springembracing the pu1nprod, means connecting the upper end of the springwith the tower, a hanger pivoted to the lower end of the spring, a spuron the hanger, a plate secured to the pump-rod and having a series ofholes to receive the spur of the hanger.

Vitness my hand this 30 day of December, 1916.

GEORGE W. MGGONNELL.

five cents each, by addressing the Commissioner of Patents.

' Washington, I). C.

